Keikogi(稽古着 or 稽古衣,Keikogi?) or dōgi (道着) is a uniform for training, used in Japanese martial arts, budo. (keiko means practice, gi means dress or clothes). In English, the term keikogi is sometimes referred to simply as the gi, which would be an incorrect use of the word in Japanese. Often keiko is replaced with the name of the Japanese martial art being practiced.
Keiko can also be replaced by do which refers to the way, meaning both the martial art and the lifestyle of the martial artist. In this it is similar to the term for Korean martial arts uniforms, dobok.